Bug 2517810 (CVE-2026-23931)

Summary: CVE-2026-23931 zabbix: Zabbix: Information disclosure of user macro values
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Zabbix. An authenticated user can exploit the `validatate.api.exists` action in the frontend to extract plaintext user macro values. This vulnerability could lead to the disclosure of sensitive information, resulting in a loss of confidentiality.
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Description OSIDB Bzimport 2026-08-18 12:36:59 UTC
The frontend validatate.api.exists action can be exploited by authenticated users to extract plaintext user macro values leading to potential loss of confidentiality.